Agilent Technologies e1420b User Manual page 12

9 FM Discriminator Fundamentals
The Frequency Discriminator Method
10 FM Discriminator Measurement Examples
Introduction
FM Discriminator Measurement using Double-Sided Spur Calibration
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Defining the measurement
Figure 163. Select the parameters definition file
Figure 164. Navigate to residual phase noise
Figure 165. Enter frequencies into source tab
Figure 166. Select constant in the cal tab
Figure 167. Select parameters in the block diagram tab
Figure 168. Select graph description on graph tab
Setup considerations for amplifier measurement
Beginning the measurement
Figure 169. Select meter from view menu
Figure 170. Selecting New Measurement
Figure 171. Confirm new measurement
Figure 172. Setup diagram for the 8349A amplifier measurement example
Table 36. Test set signal input limits and characteristics
Making the measurement
Table 37. Acceptable amplitude ranges for the phase detectors
Figure 173. Residual connect diagram example
Figure 174. Connection to optional oscilloscope for determining voltage peaks
Figure 175. Adjust phase difference at phase detector
Figure 176. Adjust phase shifter until meter indicates 0 volts
When the measurement is complete
Figure 177. Typical phase noise curve for a residual measurement
Table 38. Parameter data for the amplifier measurement example
Figure 178. Basic delay line/mixer frequency discriminator method
Basic theory 244
The discriminator transfer response
Figure 179. Nulls in sensitivity of delay line discriminator
Table 39. Choosing a delay line
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Figure 180. FM Discriminator measurement setup
Table 40. Required Equipment for the FM Discriminator Measurement Example
Determining the discriminator (delay line) length
Figure 181. Discriminator noise floor as a function of delay time
Defining the measurement
Figure 182. Select the parameters definition file
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Agilent E5505A User's Guide
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